Wire mattress.



F. M. TINKHAM.

WIRE MATTRESS.

APPLICATION FILED OCT- I5| 1915.

Patented Apr. 3, 1917.

A TTORNE Y.

FRANCIS IVI. TINKHAM, OF SPRINGFIELD, MASSACHUSETTS.

WIRE MATTRESS.

Specification of Letters Patent.

Patented Apr. 3, 1917.

Application led October 15, 1915. Serial No. 55,961.

To all whom t may concern:

Be 1t known that l, FnANcis M, Time HAM, a citizen of the United Sta-tes of America, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in TWire Mattresses, of which the following is a specication.

This invention relates to improvements in wire mattresses preferably of the type in which the main body portion is composed of a plurality of links and plates that are connected together, and these in turn being connected to end frames or rails of the mattress. The invention is not, however, intended to be limited to any particular form of wire fabric.

An object of the present invention is to provide an elevated or raised side edge portion of the fabric in order to render this part of the mattress neater in appearance, and, at the same time to materially strengthen this part of the mattress.' AA further object is to provide an elevated side edge that will effectively prevent the bed clothing from becoming torn or caught on the wire links or other parts of the fabric. A further object is to prevent the mattress from becoming laterally displaced. lleretofore, as shown in my prior Letters Patent of the United States, numbered 1,070,083, ydated,

Aug. 12, 1913, a rope-like or corded edge is provided which lies mainly above the plane of the fabric. The present invention is an improvement on the construction shown in that patent and is intended to provide a stilte-ned edge that will not roll or move down out of place, and will, at all times always remain at substantially right angles to the plane of the fabric.

The invention, in general, comprises a fabric of woven wire which is composed of links or plates connected together and to the end rails of the frame, and a corded edge also connected to the end rails and the side edges of the fabric, the corded edge having a corepiece inserted therein. This core piece comprises a single piece of flat metal that is arranged at right angles to the plane of the fabric and serves to strengthen this part of the mattress.

Referring to the drawings forming a part of the invention:

Figure 1 is a plan view showing a portion of the Vwire fabric and corded edge and the elastic means for connecting the fabric to the end rails;

Fig. 2 is a detail perspective view of a portion of a corner of the fabric of the completed mattress and showing an enlarged view of a portion of the corded edge with the inserted core therein, also the wire rod which passes through one of the coils of the corded edge for attaching the fabric to the elevated edge;

Figr is an enlarged sectional view of the corded edge showing the inserted core piece and the manner of attaching the fabric to one of the coils of the raised edge.

Referring to the drawings in detail: 1 designates the end rails of the mattress, 2 the metal plates formed from sta-mpings and having the perfor-ations 3 to receive the ends of the links. Connected to these plates are the links -4- and the il-shaped link 5. rlhe il-shaped links are in turn connected to the end rails 1 by means of the coiled springs 6. 7 designates as a whole the stiff rope-like edge which is composed of interlaced coils 8 to form a tubular structure. These coils are clamped or gripped at their ends by means of the clips 9 which comprises a short tube that is flattened and forced onto the coils 8 illustrated in Fig. 2. The clips 9 in turn are connected to the end rails 1 by means of the coils 10. For the purpose of attaching the corded edge 7 to the body portion of the fabric, the links l are attached to a rod 11 which passes through the turns of the lowermost coil 8 of the corded edge. Located within this corded or rope-like wire edge 7 is a core 12. This core preferably comprises a rectangular strip of metal of suitable weight and thickness that extends from the top to the bottom portion of the corded edge, or in other words corresponds with the dimension of the inside longitudinal diameter of the corded edge and extends the entire length of this edge.

It will be observed that the core 12 is are ranged and stands at right angles to the plane of the fabric and serves in effect, to truss or prevent the corded edge from bending downward when weight is applied to the upper edge 8 of the coils 8. The height of the corded edge 7 it will be observed, is great as compared with the thickness of the wire mattress. This elevated or side barrier edge prevents the bed clothing from being torn or caught. The ends of the core y12 may be bent so as to be clamped by means Y Vcorded edge as shown this portion of the fabric is greatly strengthened and secures a vsmooth edge and prevents the bed clothing from being torn, and at the same time maintains the mattress in place. An important feature of my invention lies in the fact that the corded edge lies Wholly above the plane of the fabric, as shown in Fig. 3, and, that the core member 12 effectively prevents this edge strengthening member from sagging oi' becoming displaced When Weight is applied to its upper edge, or, to state the same more clearly, the core member 12 acts as a truss for the corded edge, particularly when the ends 13 are clamped by the clips 9. It is clearly Within the province of my invention to vary the form and shape of the core member Without departing from the spirit and scope ofk my invention, the main object being to provide the elastic rope-like guard device 7 With a core member for the purpose of maintaining the shape of the guard and for preventing 'the saine from becoming laterally displaced when pressure or Weight is applied to the upper edge of the same. It

1 Will also be observed that the rope-like structure is hollow, and, as shown, is substantially y elliptical in form With the `longer-axis standing at right angles to the plane ofthe fabric.

It Will also be observed that the corded or rope-like edge presents a smooth uniform surface which will prevent thc bedding from becoming torn. The links t, may if desired, be connected to the corded edge as shown in dotted lines in Fig. 3 at 4', so that a portion of the corded edge 7 will extend below the mattress fabric.

It will also be observed, as shown in the drawing, that the plurality of connecting members 10 serve to prevent over turning of the member 7.

lVhat I claim is:

1. A spring bed comprising, a frame having end rails to which a wire fabric is connected, said fabric having its opposite edge portions strengthened by means of coils of .Woven Wire iiiterlocked together', a core comprising a ribbon like member located Within said coils and standing in a plane at right angles to the plane of the mattress fabric, and means for attaching the core to the end rails, and preventing over turning of the core, whereby a truss-effect is produced for strengthening the side edge of woven Wire and for serving as a guard for retaining the mattress in place.

2. A spring bed comprising a frame having end rails to Which a Wire fabric is connected, said fabric having its opposite side portions strengthened by means of coils interlocked together, a core comprising a ribbon like member located Within said coils and disposed at right angles to the plane of the mattress, the ends of the core being bent at an angle to the body thereof, clips secured to the bent ends of the core and means for attaching the clips .to the end rails and preventing over turning of the core.

FRANCIS M. TINKHAM.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents,

Y Washington, D. C. 

